8657042 has 4 divisors (see below), whose sum is σ = 12985566. Its totient is φ = 4328520.

The previous prime is 8657041. The next prime is 8657053. The reversal of 8657042 is 2407568.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8637721 + 19321 = 2939^2 + 139^2 .

It is not an unprimeable number, because it can be changed into a prime (8657041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2164259 + ... + 2164262.

Almost surely, 2^8657042 is an apocalyptic number.

8657042 is a deficient number, since it is larger than the sum of its proper divisors (4328524).

8657042 is a wasteful number, since it uses less digits than its factorization.

8657042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4328523.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 8657042 is about 2942.2851663291. The cubic root of 8657042 is about 205.3319389300.

The spelling of 8657042 in words is "eight million, six hundred fifty-seven thousand, forty-two".